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Unified Diff: Python/thread_cthread.h

Issue 10639: reindent.py converts newlines to platform default
Patch Set: Created 8 years, 8 months ago
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Python/thread_cthread.h Mon Jul 25 09:47:18 2011 -0400
@@ -0,0 +1,112 @@
+
+#ifdef MACH_C_THREADS
+#include <mach/cthreads.h>
+#endif
+
+#ifdef HURD_C_THREADS
+#include <cthreads.h>
+#endif
+
+/*
+ * Initialization.
+ */
+static void
+PyThread__init_thread(void)
+{
+#ifndef HURD_C_THREADS
+ /* Roland McGrath said this should not be used since this is
+ done while linking to threads */
+ cthread_init();
+#else
+/* do nothing */
+ ;
+#endif
+}
+
+/*
+ * Thread support.
+ */
+long
+PyThread_start_new_thread(void (*func)(void *), void *arg)
+{
+ int success = 0; /* init not needed when SOLARIS_THREADS and */
+ /* C_THREADS implemented properly */
+
+ dprintf(("PyThread_start_new_thread called\n"));
+ if (!initialized)
+ PyThread_init_thread();
+ /* looks like solaris detaches the thread to never rejoin
+ * so well do it here
+ */
+ cthread_detach(cthread_fork((cthread_fn_t) func, arg));
+ return success < 0 ? -1 : 0;
+}
+
+long
+PyThread_get_thread_ident(void)
+{
+ if (!initialized)
+ PyThread_init_thread();
+ return (long) cthread_self();
+}
+
+void
+PyThread_exit_thread(void)
+{
+ dprintf(("PyThread_exit_thread called\n"));
+ if (!initialized)
+ exit(0);
+ cthread_exit(0);
+}
+
+/*
+ * Lock support.
+ */
+PyThread_type_lock
+PyThread_allocate_lock(void)
+{
+ mutex_t lock;
+
+ dprintf(("PyThread_allocate_lock called\n"));
+ if (!initialized)
+ PyThread_init_thread();
+
+ lock = mutex_alloc();
+ if (mutex_init(lock)) {
+ perror("mutex_init");
+ free((void *) lock);
+ lock = 0;
+ }
+ dprintf(("PyThread_allocate_lock() -> %p\n", lock));
+ return (PyThread_type_lock) lock;
+}
+
+void
+PyThread_free_lock(PyThread_type_lock lock)
+{
+ dprintf(("PyThread_free_lock(%p) called\n", lock));
+ mutex_free(lock);
+}
+
+int
+PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
+{
+ int success = FALSE;
+
+ dprintf(("PyThread_acquire_lock(%p, %d) called\n", lock, waitflag));
+ if (waitflag) { /* blocking */
+ mutex_lock((mutex_t)lock);
+ success = TRUE;
+ } else { /* non blocking */
+ success = mutex_try_lock((mutex_t)lock);
+ }
+ dprintf(("PyThread_acquire_lock(%p, %d) -> %d\n", lock, waitflag, success));
+ return success;
+}
+
+void
+PyThread_release_lock(PyThread_type_lock lock)
+{
+ dprintf(("PyThread_release_lock(%p) called\n", lock));
+ mutex_unlock((mutex_t )lock);
+}
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